fix formatting

gunicorn/glogging.py

@@ -237,10 +237,9 @@ def log(self, lvl, msg, *args, **kwargs):
     def atoms(self, resp, req, environ, request_time):
         """ Gets atoms for log formating.
         """
-        if type(resp.status) is int:
-            status = resp.status
-        else:
-            status = resp.status.split(None, 1)[0]
+        status = resp.status
+        if isinstance(status, str):
+            status = status.split(None, 1)[0]
         atoms = {
             'h': environ.get('REMOTE_ADDR', '-'),
             'l': '-',
@@ -274,10 +273,9 @@ def atoms(self, resp, req, environ, request_time):
 
         atoms.update(dict([("{%s}i" % k.lower(), v) for k, v in req_headers]))
 
-        if hasattr(resp.headers, "items"):
-            resp_headers = resp.headers.items()
-        else:
-            resp_headers = resp.headers
+        resp_headers = resp.headers
+        if hasattr(resp_headers, "items"):
+            resp_headers = resp_headers.items()
 
         # add response headers
         atoms.update(dict([("{%s}o" % k.lower(), v) for k, v in resp_headers]))